#include <rect_geometry.h>

Inheritance diagram for impeller::RectGeometry:

Public Member Functions
	RectGeometry (Rect rect)

	~RectGeometry ()=default

bool	CoversArea (const Matrix &transform, const Rect &rect) const override
	Determines if this geometry, transformed by the given `transform`, will completely cover all surface area of the given `rect`. More...

bool	IsAxisAlignedRect () const override

Additional Inherited Members
Static Public Member Functions inherited from impeller::Geometry
static std::shared_ptr< Geometry >	MakeFillPath (Path path, std::optional< Rect > inner_rect=std::nullopt)

static std::shared_ptr< Geometry >	MakeStrokePath (Path path, Scalar stroke_width=0.0, Scalar miter_limit=4.0, Cap stroke_cap=Cap::kButt, Join stroke_join=Join::kMiter)

static std::shared_ptr< Geometry >	MakeCover ()

static std::shared_ptr< Geometry >	MakeRect (const Rect &rect)

static std::shared_ptr< Geometry >	MakeOval (const Rect &rect)

static std::shared_ptr< Geometry >	MakeLine (const Point &p0, const Point &p1, Scalar width, Cap cap)

static std::shared_ptr< Geometry >	MakeCircle (const Point &center, Scalar radius)

static std::shared_ptr< Geometry >	MakeStrokedCircle (const Point &center, Scalar radius, Scalar stroke_width)

static std::shared_ptr< Geometry >	MakeRoundRect (const Rect &rect, const Size &radii)

static std::shared_ptr< Geometry >	MakePointField (std::vector< Point > points, Scalar radius, bool round)

Static Protected Member Functions inherited from impeller::Geometry
static GeometryResult	ComputePositionGeometry (const Tessellator::VertexGenerator &generator, const Entity &entity, RenderPass &pass)

static GeometryResult	ComputePositionUVGeometry (const Tessellator::VertexGenerator &generator, const Matrix &uv_transform, const Entity &entity, RenderPass &pass)

Detailed Description

Definition at line 12 of file rect_geometry.h.

Constructor & Destructor Documentation

◆ RectGeometry()

impeller::RectGeometry::RectGeometry ( Rect rect )

explicit

Definition at line 9 of file rect_geometry.cc.

9 : rect_(rect) {}

◆ ~RectGeometry()

impeller::RectGeometry::~RectGeometry ( )

default

Member Function Documentation

◆ CoversArea()

bool impeller::RectGeometry::CoversArea	(	const Matrix &	transform,
		const Rect &	rect
	)		const

overridevirtual

Determines if this geometry, transformed by the given transform, will completely cover all surface area of the given rect.

This is a conservative estimate useful for certain optimizations.

Returns: true if the transformed geometry is guaranteed to cover the given rect. May return false in many undetected cases where the transformed geometry does in fact cover the rect.

Reimplemented from impeller::Geometry.

Definition at line 47 of file rect_geometry.cc.

                                                                              {
   if (!transform.IsTranslationScaleOnly()) {
     return false;
   }
   Rect coverage = rect_.TransformBounds(transform);
   return coverage.Contains(rect);
 }

References impeller::TRect< T >::Contains(), impeller::Matrix::IsTranslationScaleOnly(), and impeller::TRect< T >::TransformBounds().

◆ IsAxisAlignedRect()

bool impeller::RectGeometry::IsAxisAlignedRect ( ) const

overridevirtual

Reimplemented from impeller::Geometry.

Definition at line 55 of file rect_geometry.cc.

                                            {
   return true;
 }

The documentation for this class was generated from the following files:

impeller/entity/geometry/rect_geometry.h
impeller/entity/geometry/rect_geometry.cc

Public Member Functions